All the employees where I work were sent an email notice this last week stating that beginning June of 2008 the company property will be 100% tobacco free.
No smoking, no chewing. Nothing. Ouch.
There's going to be a lot of grumpy people there when that happens. Typically your too far from the property boundaries to leave for a smoke. You'll just have to wait til you leave at the end of the day. Or on your lunch break if your so inclined to go to that much trouble for a smoke.

Good luck quitting....I'm next.....